公开(公告)号：US20160336729A1

公开(公告)日：2016-11-17

申请号：US15223635

申请日：2016-07-29

申请人： Mitsubishi Electric Corporation

发明人： Kazunori SAKANOBE ,  Koichi ARISAWA ,  Futoshi OKAWA ,  Masato HANDA

IPC分类号： H02H3/08 ,  H02H7/122 ,  F04B35/04 ,  G01K15/00 ,  F04C29/00 ,  F04C28/28 ,  G01K7/36 ,  H02H3/00 ,  F04B51/00

CPC分类号： H02H3/08 ,  F04B35/04 ,  F04B51/00 ,  F04B2203/0201 ,  F04C28/28 ,  F04C29/0085 ,  F04C2240/403 ,  G01K7/36 ,  G01K15/005 ,  H02H3/006 ,  H02H7/0833 ,  H02H7/122

摘要： A current detection device for detecting an electric current flowing through an inverter, an overcurrent level generation device for generating an abnormality judgment reference value, an overcurrent detection device for generating an interruption signal to the inverter on the basis of an output of the current detection device and the abnormality judgment reference value, and an adjusting apparatus for correcting the abnormality judgment reference value of the overcurrent level generation device on the basis of the output at a time when a constant electric current is applied to the current detection device are provided. The overcurrent level generating device is provided with one or a plurality of resistance value adjusting sections, and generates the abnormality judgment reference value in correspondence to a resistance value of the resistance value adjusting section. The adjusting apparatus performs a zapping operation by means of applying a reverse-bias to a zener diode, and corrects the abnormality judgment reference value.

摘要翻译： 用于检测流过逆变器的电流的电流检测装置，用于产生异常判定基准值的过电流电平发生装置，用于根据电流检测装置的输出向逆变器产生中断信号的过电流检测装置 和异常判定基准值，以及用于根据向电流检测装置施加恒定电流时的输出来校正过电流电平生成装置的异常判定基准值的调整装置。 过电流电平产生装置设置有一个或多个电阻值调节部分，并且相应于电阻值调节部分的电阻值产生异常判断基准值。 调整装置通过向齐纳二极管施加反向偏压来执行切换操作，并且校正异常判定基准值。

公开(公告)号：US20170302190A1

公开(公告)日：2017-10-19

申请号：US15516948

申请日：2016-01-04

申请人： MITSUBISHI ELECTRIC CORPORATION

发明人： Hiroshi IKARASHI ,  Futoshi OKAWA ,  Hiroyuki NAKAMURA

IPC分类号： H02M7/00 ,  H02M7/537 ,  H03K5/24 ,  H05K7/20

CPC分类号： H02M7/003 ,  H02M1/32 ,  H02M7/493 ,  H02M7/537 ,  H02M7/53875 ,  H03K5/24 ,  H05K7/209

摘要： In a power converter apparatus, a first power converter circuit is configured of first power semiconductor devices, and a second power converter circuit is connected in parallel to the first power converter circuit, and is configured of second power semiconductor devices. A control circuit generates a control signal for controlling each power semiconductor device of the first and second power converter circuits. A timing control signal generator circuit compares a first amount of current flowing through the first power semiconductor devices with a second amount of current flowing through the second power semiconductor devices, and generate a timing control signal for controlling a timing of a rise or a fail of each of the control signals inputted to the first and second power converter circuits, based on a comparison result. A timing correction circuit controls the control signals to correct the timing of the rise or the fall thereof.